深基坑土钉支护结构稳定性的模糊可靠度分析

Fuzzy Reliability Analysis for the Stability of Soil Nailed Structure for Deep Foundation Pit

针对深基坑稳定性问题中随机性和模糊性特点,进行了实际基坑边坡工程的土钉支护结构在各种破坏形式下的模糊可靠度分析。结合工程实例和MATLAB编写程序,并与传统安全系数法及结构可靠度法相比较,计算结果表明,模糊随机可靠度方法能够更为全面、科学的反映基坑的稳定性问题。

In view of the randomness and fuzziness in the study of stability of deep foundation pit, the paper presents a fuzzy reliability analysis to soil slope engineering invalidated model which protected by soil nailing.Combined an engineering example with MATLAB programming, and the results are compared with the safety coefficient method and the structural reliability method. An example calculation results indicate that the reliability analysis of foundation pit stability is more comprehensive and scientific by using the fuzzy-random reliability theory.